Microsoft SharePoint Server 2013 Preview is now available for download…
I have put together some links that will be useful. I will keep updating this page with the latest links as we see SharePoint Server 2013 progress to RTM
Download here: http://technet.microsoft.com/en-US/evalcenter/hh973397.aspx?wt.mc_id=TEC_121_1_3
SharePoint 2013 product key: NQTMW-K63MQ-39G6H-B2CH9-FRDWJ (180 day trial key)
SharePoint 2013 Hardware and Software requirements: http://technet.microsoft.com/library/cc262485(office.15).aspx
Deployment guide for SharePoint 2013: http://www.microsoft.com/en-us/download/details.aspx?id=30384
SharePoint 2013 topologies: http://www.microsoft.com/en-us/download/details.aspx?id=30377
Install and Deploy SharePoint 2013: http://technet.microsoft.com/en-US/sharepoint/fp142376
SharePoint 2013 for IT pros: http://technet.microsoft.com/en-US/sharepoint/fp142366
Office Web Apps Server: http://www.microsoft.com/en-us/download/details.aspx?id=30358
